Machine for scouring grain, &amp;c.



No. 721,649; PATENTED FEB. 24, 1903. I J. H. PENDLETON.

MACHINE FOR sooumue GRAIN, 8w.

AILPLIOATIQN FILED JULY 9, 1901. RENEWED JULY 31,1902.

N0 MODEL.

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UNITED. STATES PATENT OFFICE.

JOHN H. PENDLETON, OF JAMESBURG, NEW JERSEY, ASSIGNOR TO THEPENDLETON-TAPSCOTT COMPANY, OF NEW YORK, N.'Y., A

RATION on NEW JERSEY.

CORPO- MACHINE FOR SCOURING GRAIN, 80C.

SPECIFICATION forming part of Letters Patent N 0. 721,649, datedFebruary 24, 1903. Application filed Julyv 9, 19 01. Renewed July 31,1902. $eriel No. 117,748. (No model.)

To all whom it may concern:

Be it known that 1, JOHN H. PENDLETON, a citizen of the United States,and a resident of J amesburg, in the county of Middlesex and State ofNew Jersey, have invented a new and useful Improvement in Machines forScouring Grain and other Matters, of which the following is aspecification.

This invention relates to soon ring-machines of the centrifugal typewhich may be employed for hulling rice, coffee, buckwheat, corn, oroats, pearling rice or barley, or otherwise scouring grain or seeds; andit consists in a certain organization of such a machine and certaincombinations of its details, as hereinafter described andv claimed,whereby a very efficient scouring action is obtained.

Figure 1 represents a central vertical sectional View of a machineembodying my invention; Fig. 2, a central section of what I call thebowl of the machine, taken transversely to Fig. 1 in the line 2 2.

a is a standing frame in which the several parts of the machine aresupported.

b c are two upright shafts, of which I) is hollow for the passage of 0through it. Thecentral shaft 0 has at its lower end a journal 3,

which works in a spherical journal-box d, fitted to the lower part ofthe frame a, and the said shaft has its bottom supported on a ballstep-bearing e. The hollow shaft his supported on a shoulder 4,provided, as hereinafter described, on the shaft 0, and above thissupport it works in a roller-bearing f g, which is located in an openingin the framing a, the box f of said bearing, which contains the rollersg, being surrounded with a ring h, of rubber, which is received partlywithin a groove in the exterior of said box f and partly within anannular groove in the framing. On the upper end of the central shaft 0there is affixed a crank i, from which there projects upward obliquelyat an angle of thirty degrees or thereabout to the common axis of theshafts h c a pivot 0r crank-wrist j, to which there is fitted to turnfreely upon it a carrier 70, in the form of a socket, for carrying thecentrifugal receiver, (designated as a whole by l and hereinafterreferred to as a bowl.)

m is a horizontal main shaft which works in a bearing 7 at the top ofthe framing a and may be driven by any suitable means for example, by abelt running upon its pulley n and which carries a bevel-gear 0, gearingwith and driving an upright shaft p through a bevel-gear g on thelatter. The said shaft 1) works in fixed bearings at 5 and 6 in theframing a and carries two sp'urgears r and .9,

which gear, respectively, with a spur-geart I on the shaft b and aspur-gear u on the shaft c for the purpose of driving these two shaftsin the same direction, but at different velocities, the said spur-gearsbeing represented as 4, before mentioned, for the support of the shaftb. Between the bowl carrier la and the shaft b there is what may betermed a universal coupling, represented as consisting of gear-teeth 8on the upper edge of an open clutch-box 9, formed on or affixed to theupper end of said shaft 1), and teeth 10, formed on the under side ofaflange 11 around the upper part of the bowl-carrier.

The bowl Z is represented as having an internally-conical oroutwardly-concave bottom 12, forming an overlap-cover to the carrier isand clutch-b021 9, and as having its sides 13 or profile of the form ofportions of a sphere the center of which is the point of intersection ofthe axes of the shaft 0 and the crankwrist or oblique pivot j, theconical form of the bottom permitting this center to be brought down tothis point. formed'of or lined with any scouring or polishing material.In the example represented they are of wire-cloth distended between alower ring 14, which is fastened to the bottom 12, and an upper ring 14,which is connected with the lower one by side braces 15. The upper ring14 carries a cover 16, which has a central opening 22'for the feeding inthe grains, seeds, or matters to be scoured. The conical bottom 12 hasan upward pr0jec tion in the form of a cap. 17, which fits over andincloses the upper end of the pivot j and The sides 13 may be,

has also a downward tubular projection 18, which fits into an annularcavity in the socket of the carrier k, and by these means dust isexcluded from the pivotj and carrier. The carrier is held down on thepivotj by a collar 19, placed on the upper end of the latter over thetop of the carrier, and a pin 20, inserted through said collar and thepivotj. The bowl is attached to the carrier, so as to rotate therewith,by means of one or more dowel-pins 21, fastened in the flange 11 of thecarrier and entering holes in the bottom of the bowl. This attachmentprovides for the lifting ofi of the bowl from the carrier for thepurpose of emptying it.

The operation of the machine is as follows: Rotary motion being given tothe shaft on and through it to the shaft 13, and thereby to the shafts bc at unusual velocities, the bowl Z is caused by the shaft 0 to revolvehorizontally therewith about the vertical axes of Z) and 0, while it isalso caused by the shaft 1) to rotate about the oblique axis of thepivotj; but as the shafts b 0 both rotate in the same direction thevelocity of the bowl upon the oblique axis is only equal to thedifierence in the velocity between I) and c-that is to say, if 1) makesnine rotations to ten of c the bowl will rotate once on its pivotj forevery ten rotations of c. In this way every side of the bowl is in turnbrought both to the highest and lowest position. Thegrain, seed, ormatter to be scoured being fed into the bowl through the opening 22, thecompound hori zontal and oblique revolution and rotation of the bowlabove described causes said matter to be subjected not only to thecentrifugal action around and upon the sides of the bowl, but also to aconstant upward and downward movement thereon, so that all the grains orparticles of the matter are constantly undergoing very active changes ofposition with respect to each other and to the bowl, and every grain orparticle is in turn brought into contact with the scouringsurface 13,and hence a very active scouring is obtained on all parts of the surfaceof every grain or particle. In this operation, though the particles ofthe matter are undergoing such constant changes of position, its mass wwill be caused by the centrifugal force developed in it to spread itselfvertically, or nearly so, against the sides of the bowl, as indicated inFigs. 1 and 2. WVhen the matter has been sufiiciently scoured, the bowlis lifted off the carrier and may be emptied of its contents, which mayafterward be subjected to any screening orseparating process for thepurpose of separating the offscourings from the scoured grains orparticles.

In case the scouring sides 13 are made of reticulated fabric, aswire-cloth, the offscourings, if they are in the form of powder or veryfine, may wholly or in part pass off through the said fabric.

It is obviously immaterial which of the shafts b 0 should have thehigher Velocity, it

only being necessary that their velocities should be difierent toproduce the rotation of the bowl upon the pivotj.

I do not limit my invention to any material or fabric for the sides ofthe bowl. They may be formed of or lined with any known or suitablematerial of any degree of roughness or hardness or softness, accordingto the nature of the material to be hulled, scoured, or polished.

What I claim as my invention is 1.- In a scouring-machine, thecombination of a shaft, a pivot carried by said shaft and arrangedobliquely thereto, a bowl having internal scouring or polishing surfacesand capable of turning about said pivot and means for simultaneouslyproducing the rotation of said shaft and the rotation of the bowl onsaid pivot, substantially as herein described.

2. In a scouring-machine, the combination of a shaft, a crank on saidshaft, a bowl having internal scouring or polishing surfaces and capableof turning about the wrist of said crank and means for simultaneouslyproducing the rotation of said shaft and the rotation of the bowl onsaid wrist, substantially as herein described.

3. In a scouring-machine, the combination of a shaft, a pivot carried bysaid shaft and arranged obliquely thereto, a bowl having internalscouring or polishing surfaces and capable of turning about said pivotand means for simultaneously producing the rotation of said shaft andthe rotation of the bowl on said pivot, substantially as hereindescribed.

4. In a scouring-machine, the combination of a shaft, a pivotwhich iscarried by said shaft and the axis of which is oblique to and intersectsthe axis of said shaft, a bowl capable of turning about said pivot andhaving internal scouring or polishing surfaces of the form of portionsof a sphere whose center is at the intersection of the axis of the shaftand pivot, and means for simultaneously producing the rotation of theshaft and the rotation of the bowl on the pivot, substantially as hereindescribed.

5. In a scouring-machine, the combination of two shafts having a commonaxis, a pivot arranged obliquely to said axis carried by one of saidshafts, a bowl having internal scouring or polishing surfaces andcapable of turning about said pivot, a coupling between the bowl and theother of said shafts, and means for rotating the two shafts at differentv'e locities, substantially as herein described.

6. In a scouring-machine, the combination of a hollow upright shaft, acentral shaft working within said hollow shaft, a pivot carried by saidcentral shaft and having its axis oblique thereto, a bowl havinginternal scouring or polishing surfaces and capable of turning on saidpivot, a coupling between said bowl and said hollow shaft, and means forrotating the two shafts at different velocities, substantially as hereindescribed.

7. In a scouring-machine, the combination of a hollow upright shaft andbearings therefor, a central shaft working within said hollow shaft, apivot carried by said central shaft and having its axis oblique to saidshaft, a carrier fitted to turn on said pivot, a bowl having internalscouring or polishing surfaces and removably attached to said carrier, acoupling between said hollow shaft and carrier, and means for rotatingthe two shafts at different velocities, substantially as hereindescribed.

8. In a scouring-machine, the combination of a hollow upright shaft andbearings therefor, a central shaft working within said hollow shaft, apivot carried by said central shaft and having its axis oblique to saidshaft, a carrier fitted to turn on said pivot, teeth provided on saidhollow shaft and corresponding teeth on said carrier, a bowl havinginternal scouring or polishing surfaces and removably attached to saidcarrier, and means for rotating the two shafts at different velocities,substantially as herein described.

9. In a scouring-machine, the combination of a hollow upright shaft andbearings therefor, a central shaft working within said hollow shaft, acrank carried by said central shaft, a bowl having internal scouring orpolishing surfaces and capable of turning about the wrist of said crank,a third upright shaft, gears of difierent diameter on said third shaftengaging with corresponding gears on said central and hollow shaftsrespectively, and means for giving rotary motion to said third shaft,substantially as herein described.

10. In ascouring-machine, the combination of a hollow upright shaft, acentral shaft working Within said hollow shaft, a crank on said centalshaft having the axis of its wrist oblique to and'intersecting the axisof said hollow and central shafts, a bowl capable of turning about saidwrist and having an externally concave bottom and scouring side surfacesof the form of portions of a sphere whose center is at the intersectionof said axis and within said concave bottom, a coupling between saidbowl and said hollow shaft and means for simultaneously producing therotation of the two shafts at different Velocities, substantially asherein described.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of two witnesses, this 19th day of April,

Witnesses FREDK. HAYNES, HENRY THIEME.

